Home / 19,970.33-29,791.95-19,427.38

Finding the Fourth Proportional to 19,970.33, 29,791.95 and 19,427.38

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Solution

The fourth proportional to 19,970.33, 29,791.95 and 19,427.38 is: 28,981.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,970.33 : 29,791.95 = 19,427.38 : x
  2. Step 2: Convert to fraction form
    19,970.33/29,791.95 = 19,427.38/x
  3. Step 3: Cross multiply
    19,970.33x = 29,791.95 × 19,427.38
  4. Step 4: Simplify right side
    19,970.33x = 578,779,485.02
  5. Step 5: Solve for x
    x = 578,779,485.02/19,970.33
  6. Step 6: Final answer
    x = 28,981.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.